The TiVo Premiere 4 DVR that broke cover a few days ago has been officially confirmed by the company, with exactly the specs indicated. In case you're not familiar, it's a quad tuner DVR that ships with a 500GB hard drive and standard TiVo remote, slotting in below its big brother at retail -- the 2TB and THX-endowed Premiere XL4. The smaller hard drive is something that Doug Bieter, director of retail sales, says solves the Sunday night
